Pump.



C. A. GEHIVIAN & 1. W. HUGHES.

PUMP.

PUMP.

APPLICATIQN FILED FEB. 6, wxs.

asented May 8, 1917.

3 SHEETS-SHEET 2.

UNTED STATE@ PATENT @FFE CHARLES A. GEHMAN, OF NEW YORK, N. Y.AND JAMES W. HUGHES, OF NARBERTH. PENNSYLVANIA, ASSIGNORS, BY DIRECT rAND MESNE ASSIGNMENTS, TO GEI-IMAN PUMP COMPANY, OF PHOENIX, ARIZONA, A CORPORATION' OF ARIZONA.

PUMP.

Application filed February 6, 1915.

To all whom z' may concern.'

Be it known that we, CHARLES A. Giur )nin and JAMES W. Hoei-ins, citizens of the United States, and residents of New York, New York county, New York, and Narberth, Montgomery county, Pennsylvania, respectively, have invented certain Improvements in Pumps, of which the following is a specification.

Uur invention relates to pumps; and the object o f our invention is to provide a pump for measuring differing quantities of liquids,

Fig. 2, is a side elevation, on a larger' ,l

scale, of our improved pump operating mechanism, the sicc cover plate for the con-i taining casing having been removed, and the!4 pump piston operating rod being shown in f the upper position;

Fig. 3, is a view similar to Fig. 2; the= pump piston operating rod being shown i the lower position, and the mechanism being also shown in a position permitting changesof certain parts of the mechanism to permit the pumping of a different quantity of liquid;

Fig. i, is a vertical sectional view on the line tf-4;, Fig. 2;

Fig. 4, is an enlarged sectional view of aportion of the structure shown in Fig. 4;

Fig. 1 -b, is a sectional view of the same por` tion, showing one part occupying a diiferent,F position with respect to the other; l V Fig. is a sectional plan view on the lin 5 5, Fig. 2;

Fig. 6, is a sectional plan view on the lineA (3 6, Fig. 2, and

Fig. 7, is a view illustrating a detail of our invention.

Specification of Letters Patent.

Patented May 8, i917.

Serial No. 6,543.

The structure forming the subject of our invention is particularly adapted for measuring and registering small quantities of liquid, such as whisky or other spirituous or malt liquors direct from an original package, a barrel for instance; also for measuring, delivering and registering other liquids, such as oil, gasolene and the like, and it is designed to accurately measure the quantity of liquid discharged no matter what its nature may be.

In the present instance, the pump is designed f-or measuring, recording and registering quantities of liquid in half-pints, pints and quarts, but it will be understood that the quantities may be varied as desired by the adjustment of certain portions of our structure, and changes in the indications of the amounts pumped.

In the accompanying drawings, l represents a suitable casing which may be reduced at the upper portion, as indicated, and within which is adapted to move a rack rod 2; the lower end of which is connected to a piston rod 3; the connection being such as to provide for a slight amount of lost motion, for a purpose hereinafter described.

Suitably journaled within the casing is a lshaft 4f carrying a pinion 5 on its inner end adapted to mesh with the teeth of the rackod Q, so that the latter may be raised and `lowered when motion is imparted to said shaft 4. On the lower end of the piston rod is a suitable iston or alunffer 7 mounted in ythe pump cylinder 8, and said piston or plunger carries a plate check-valve 9 which lis arranged to open on the down-stroke and to rclose on the lip-stroke. This pump may le suitably connected to an original. pack age or container, such as the barrel 10; the

onnections between the same and the pump orming no part of our inventi-on. The

inlet within the barrel will be provided with a proper check-valve and strainer.

The pump cylinder carries at the upper end an outlet pipe l1, which communicates with a nozzle 12 mounted on the casing l. The rack rod is arranged to move vertically within the casing, and has on its under face aseries of grooves or slots l2, 13 and 14,

vertically disposed, which slots communicate with a cross slot 15 at the top of said rod. These slots 12, 13 and 14 are adapted to coperate with va lug 16 on a swinging bar 17 which may be brought into registry therewith, such bar carrying a projection 18A adapted to be alined with one of the operating fingers or arms 18a, 18h and'18c of a series of registering devices. The swinging bar 17 is slotted at its lower end for substantially pivotal engagement with a pin 19 carried by the casing; being shiftable on said pivot to bring its lug 16 into alinement with any one of the slots or grooves 12, 13 or 14, of the rack-rod 2 when the latter is in the lowermost position, as shown in Fig. 8.

In connection with the pinion 5 on the shaft 4, which may be operated by a suitable handle 20 to raise and lower the rack rod 2, we arrange stop mechanism for arresting the movements of said rack rod in the form of sun-and-planet gearing. For this purpose, we mount on the shaft 4 a pair of plates 24 and 25, in which are journaled pinions 26 and 27, meshing with the pinion 5; the pinion 26 being arranged to be thrown -into engagement with the rack rod when the latter reaches the limit of its downward movement, while the pinion 27 is arranged to be thrown into engagement with said rack rod when the latter reaches the limit of its upward movement.

The plates 24 and 25 are free to rock on the shaft 4 under certain conditions, but are held by their connecting means (bolts or screws) in rictional engagement with the pinion 5 so as t-o be actuated thereby in connection with the swinging bar 17 and maintained in a position with both pinions out of engagement with the rack-rod during the raising and lowering of the latter or until it has been moved to the limit of its upper or lower position, as hereinafter described.

As shown in Fig. 2, the rack-rod is in the uppermost position; the pinion 27 meshing with the teeth of said rack-rod 2, and also with the teeth on the pinion 5 and the swinging bar 17 moved to bring its lug 16 in line with the slot 14. As the handle 20 is turned to lower the rack-rod 2, the pinion 27 is disengaged with the teeth of the rack 2 by reason of the frictional engagement of the plates 24 and 25 with the pinion 5, and upon movement ot said plates a projection 28 cari ried by said plate 25 strikes the lower side ot a groove 29 in the swinging bar 17, thereby limiting the movement of said plates and preventing, during the movement of said rack-rod 2, the engagement of the pinion 26 with 'the teeth of the same.

Fixed to the inside of the frame is a block 31, preferably of hardened metal, having a plurality of pairs of recesses 32, 33; 32a, 33a; and 32h, 33h, disposed in vertical alinement and set relatively close together; the function of which is to receive a spring-pressed plug or pin 34 carried by the swinging bar 17 when the latter is disposed with its lug 16 in aline-ment or coperative engagement with one of the slots 12, 13er 14. This arrangement is particularly desired for the purpose of holding the swinging member when the rack-rod 2 is in the eXtreme upper or eXtreme lower position whereby one of the swinging pinions may be locked to the rack rod to prevent further movement of said rack-rod in the direction of movement prior to such locking action.

As the rack rod 2 nears the end of its downward stroke, the upper side or wall of the cross slot 15 comes into engagement with the lug 16, thereby lowering the swinging bar 17 until pin 34 is brought midway between the recesses 32 and 83,' (or 32a and 33a, or 32 and 33", depending upon the quantity of liquid which'has been dispensed by the previous upward movement of the rack-rod and the lateral position of the bar 17,) or slightly past the high point between said recesses, whereupon the spring actuating the plug 34 moves the same into the lower recess; thereby forcibly lowering said bar 17.

his movement of the bar 17 brings the upper wall of the groove 29 into engagement with the projection 28 of the plate 25, and moves it slightly, at the same time placing the groove in such position with respect to the projection that said plate may be turned on the shaft 4 by the frictional engagement of said pinion 5 therewith upon the further movement of the handle 20, thereby causing the pinion 26 to mesh with the teeth of the rack-rod 2 and stop further movement of the latter in the downward direction. F ig. 3 shows the rack-rod in the lowermost position after the pinion 26 has been brought into engagement with its rack, while F ig. 2 shows the rack-rod in the uppermost position after the pinion 27 has been brought into engagement with its rack.

Normally, during the movement of the handle 20 to raise or lower the rack-rod, one wall of the slot 29 will be in such position that the vfriction imparted to the plates 24 and 25 will hold the projection 28 oit said plate 25 in engagement with such wall of the groove 29, maintaining, while such move-- ment of the handle is continued in the one direction, both of the pinions 26 and 27 clear of the rack. The groove 29, however', is of such a width that should the operator attempt to reverse the stroke, the frictional engagement of the plates 24 and 25 will shirt one of the pinions 26 or 27 into engagement with the rack, as in such instance the projection 28 will not be restrained by the opposite wall of the groove 29.

It will he understood, of course, that the rack-rod must always be lowered to the position shown in Fig. 3 before it can be raised for dispensing any quantity ot the liquid, and when lowered, the wall of the slot engages the lug 16 and lowers the swinging rod so that its pin 34 engages one of the lower recesses in the block 31. lf a pint is to be dispensed, the swinging rod is moved laterally to the position shown in Fig. 3, bringing its lug 1G into alinement with the slot 13 of the rack-rod.

Upon turning the handle in the direction of the arrow, the friction between the pinion 5 and the plates 24 and 25 will carry the projection 28 of the latter into engagement with the upper wall of the slot 29, moving the pinion 26 out of mesh with the rack and keeping' the pinion 27 out of such engagement. This position will be maintained un- 1 til the stop in the slot 13 reaches the lug 16 of the swinging bar, whereupon the latter will be raised; the plug 34 being moved therewith from the lower recess 33l to the upper recess 32, and such movement of the swinging bar will change the relation of itsv groove 29 with respect to the projection 28, so that continued movement of the shaft 4 in the same direction will swing the plate by its rictional engagement with the pinion 5, and throw the pinion 27 into engagement with the rack-rod, as shown in Fig. 2, thereby arresting the upward movement of said rack-rod. F ig. 2, however, shows the parts in the position they are moved when the rack-rod has been raised to dispense a quart of liquid.

Action exactly the reverse of this takes place on the downward movement of the rack-rod; the swinging bar being maintained with the plug 34 in an upper recess of the block 31., thereby maintaining its groove 29 in such position as to hold both pinions 26 and 27 out of engagement with the rack-rod until the limit of the downward movement is reached, when the swinging bar is lowered, releasing the projection 28 of the plate 25, permitting the latter to be swung by its trictional engagement with the pinion so as to bring the pinion 26 into locking engagement with the rack-rod, as indicated in F ig. 2.

The operating fingers 18, 18h or 18C, as the case may be, of the registering mechanism are tripped by the projection 18 on the upward movement of the rack-rod 2, while the registration oi' such tripping action is effected on the downward movement; suitable springs 30 returning the linger actuated to its normal position, and this movement of said linger operates the vregistering mechanism. As will be understood, the swinging bar 17 is movable to a position to effect operation of any one of the registering mechanisms through one of the lingers 18a, 18h, or

18, and when in such position, it also coacts with the rack-rod so that the diderent quantities indicated may be raised by the pump piston.

As shown in Fig. 3, the swinging bar 17 is in position to control delivery of a pint of liquid, upon the upward movement of the rack-rod 2, and to register the same by engagement of its projection 18 with the tinger 18b of the registering mechanism.

'lhe registering devices which we employ in this particular construction are three in number; one for each of the quantities of liquids to be measured, and they are provided with the projecting fingers as described, which are acted upon by the projection 18 of swinging bar 17 when the rack rod reaches the limit of its upward movement. As described, this swinging bar can be moved so that its actuating projection 18 will be in line with any one of the register actuating lingers 18a, 18b or 18", and as it is operatively connected with the rack-bar by reason of the disposal of the lug 16 in one of its slots or grooves 12, 13 or 14, said swinging bar will be raised when said rack-rod reaches the limit of its upward movement.

The slots or grooves 12, 13 and 14, in the rack-rod are provided with adjustable stopmembers held in place by screws 36; said stop members having side flanges 37 adapted to grooves 38 at the edges of the slots whereby they may be held in adjusted positions to determine the quantity of liquid raised by the pump when the controlling means are in registry with said slots. The position of the stops 25 in the slots 12, 13 and 14 with respect to the top wall or upper edge of the slot 15 are, of course, proportional to the amount of liquid to be drawn. ln the present arrangement; the stop in the slot 12 limits the movement of the rack-rod in the delivery of half-pints; the stop in the slot 13, the delivery of pints, and the stop in the slot 14, the delivery of quarts.

The registers A, B, C, are mounted in the upper portion of the casing; the latter having apertures 40 whereby the numerals of said registers may be viewed, and journaled in the top portion of the casing is a spindle or pin 41; the inner end of which is suitably connected to a selector arm 42, connected by a link 43 with the swinging bar 17, while the outer end of said spindle carries a crank arm or handle 44 whereby said selector arm 42 may be moved. The apertures 40 are marked with the quantity ot liquid to be delivered, and the crank or handle 44 is preferably provided witha pointed end 45 arranged to be disposed toward the indicated quantity of liquid to be delivered. `When in such position, all the rest of the mechanism will be in proper relation for the delivery of the amount of liquid indicated.

The connection 46 between the pump rod 3 and the rack-rod 2, illustrated more particularly in Fig. 7, provides for a certain amount of lost motion between these parts equal to the distance between the teeth of the pinion 5 and those of the rack-rod, and consequently no movement of the piston or pump rod can be e'liected until movement of therack-rod is actually started, and hence no operation of the pumping mechanism can be etl'ected until this is accomplished.

The shifting of the selector arm 42 may only be effected when the rack-rod 2 and swinging bar 17 are in the lowermost posin tion, and hence it will be impossible to shift the selector means to change the quantity of liquid delivered after the discharging operation has once commenced.

As the swinging bar 17 is moved laterally by the selector arm 42, the spring-pressed plug 34 successively engages the lower recesses in the block 31.

The operation of the mechanism is as follows:

It the pump is to measure and register quarts for instance, the selector arm 42 is actuated by the external crank or handle 44 until the swinging bar 17 is in line with the register for indicating quarts, as indicated on the outside of the casing and the lug 16 of said swinging bar 17 `is alined with the slot 14 and a suitable container or receptacle is provided below the nozzle. The crank handle 20 is then turned in the direction of the arrow, Fig. 1, which will raise the rackrod 2 and cause the pump-rod to move upward, carrying with it the plunger, and lifting the liquid in the cylinder a ove the plunger and causing it to flow out of said nozzle. As the rack-rod nears the end of its upward movement, the swinging bar 17 is lifted so that its projection 1S engages one of the registering lingers, (18c for quarts), lifting the same. Continued movement of said raclcrod causes the spring-controlled pin 34 of the swinging bar 17 to leave its lower recess 33h and enter the upper recess B2b. During such action, the rocking plates carrying the pinions are shifted, bringing the lower pinion 27 into engagement with the rack-rod and arresting the further movement of the same. Then the mechanism is in this position, the selector is locked against movement. Upon reversing the rack-rod, however, by turning the crank arm in the opposite direction, the pinion 27 engaging` the rack-rod will be released, as before de scribed, and then when the rack-rod has ap proached its lowermost position, the swinging bar 17 will be shifted from Athe upper position to the lower position, moving the spring-pressed pin 34 out of the upper socket 32b into the lower socket 38", which action shifts the rocking plates again;

bringing the upper pinion 26 into engagement with the rack-rod and arresting the downward movement of the same.

llVhen the mechanism is in this position, the lug 1G carried by the swinging member 17 is in alinement with the horizontal slot or groove 15 of the rack-rod 2 which communicates with the vertical slots or grooves 12, 18 and 14, having the adjustable stops, and the change in the quantity of liquid 'to be delivered may then be eltected by operating the external handle or crank 44 controlling the position o the selector arm 42 and the swinging bar 17 operatively connected therewith.

rThe rack-rod 2 has an aperture larger than the pin connecting the same with the pump rod as indicated in Fig. 7, so as to permit the lost motion mentioned.

We claim:

1. rll`he combination, in a measuring apparatus, of a series of registers, a pivotally mounted swinging bar, means for moving the said swinging bar to aline with any one Aof the registers, a pumping device, a plurality of measuring stops interposed between the pumping device and the swinging bar, means for moving the swinging bar so as to actua-te a given register through the medium of the pump operating device, and a brake Jfor stopping the pumping device through the medium of said swinging bar.

2. The combination of a cylinder, a pump plunger, a pumping device connected to the plunger, a series of registers, selective means comprising a pivoted swinging bar movable to a plurality of positions and actuated by the pumping device to actuate any one of the registers, and adjustable stops carried by the pumping device for controlling the amount of liquid delivered and the actuation of the swinging bar.

3. The combination of a casing, registering mechanism carried thereby, a pump, a rack rod vertically movable in the casing and connected to the pump whereby the latter may be operated, a plurality of adjustable stops carried by the rack rod, a register operating member comprising a swinging bar adapted to be moved into registry with any one of said stops, a pinion in engagement with the rack rod, means for operating the same in both directions, a swinging frame on the same axis as said pinion, auxiliary pinions carried by said frame above and below the rack-rod operating pinion and adapted to be thrown into engagement with the rack rod, and connections between said swinging :trame and the swinging bar whereby an auxiliary pinion will bethrown into engagement with the rack rod at the end of each movement of the latter.

4. rlhe combination, in a measuring apparatus, of a casing, a pump, a plunger in said pump, a rod carrying said plunger, a rack rod vertically movable in the casing and connected to the plunger rod, a pinion for operating said rack rod, means for operating said pinion, means for stopping the movement of said rack rod, a swinging bar operatively connected with said rack-rod, and means for lockin the rack rod stopping means through said swinging rod.

' 5. The combination, in a measuring apparatus, of a rack-rod, a plunger operating pump rod connected therewith, a cylinder, a pumping device including a plunger mounted in the cylinder and operatively connected to the rack-rod, a series of registers, means carried by the rack-rod for predetermining the discharge movement of the same; said pumping device discharging liquid on the upward movement of the rack-rod and plunger connected thereto, and a swinging bar movable into alinement with any one of said registers and actuated by the rack-rod to operate the respective registers; said bar cooperating with the means for limiting the upward movement of the rack-rod.

6. The combination of a cylinder, a pump plunger, a pumping device including a rack rod connected to the plunger, means for operating said rack rod in both directions, and locking means including pinions for alternate engagement with said rack-rod to prevent changes in the direction of movement of said rack rod until it reaches the ends of its respective movements.

7. The combination, in a measuring apparatus, of a cylinder, a pump plunger, a pumping device connected to the plunger, a series of registers, a pivotally mounted swinging bar, means for moving said swinging bar to aline with any one of the registers, a plurality of measuring stops interposed between the pumping device and the swinging bar, means for moving the swinging bar so as to actuate a given register through the medium of the pumping device, a brake for stopping the pumping device, and means for. temporarily locking the swinging bar during the greater part of the operation of the pumping device.

8. The combination of a cylinder, a pmnp plunger, a pumping device connected to the plunger, a series of registers, a pivoted swinging bar forming a selector movable to a plurality of positions and actuated by the pumping device to actuate any one of the registers, selective means for positioning said swinging bar, adjustable stops carried by the pumping device for controlling the amount of liquid delivered and the actuation of said swinging bar, and a braking device under the control of the swinging bar.

9. The combination of a casing, registering mechanism carried thereby, a pump, a rack-rod vertically movable in the casing and connected to the pump whereby the latter may be operated, a plurality of adjustable stops carried by the rack rod, a register operating swinging bar adapted to be moved into registry with any one of said stops, a pinion in engagement with the rack rod, means for operating the same in both directions, a swinging frame on the same axis as said pinion and in frictional engagement therewith, and pinions carried by said frame above and below the rack-rod operating pinion and adapted to be alternately thrown into engagement with the rack rod to arrest the movement of the same.

l0. The combination, in a measuring apparatus, of a casing, a pump, a plunger in said pump, a rod carrying said plunger, a rack-rod vertically movable in the casing and connected to the plunger rod, a pinion for operating said rack-rod, means for operating said pinion, means o'r stopping the movement of said rack-rod, a vertically movable swinging bar, means for moving said swinging bar by the rack-rod, and a brake for said rack-rod brought into action by the swinging bar at the termination of the raclr-rods movements and automatically actuated to non-braking position by the pinion between the ends of such movements.

11. The combination, in a measuring apparatus, ci a casing, a pump rod having a toothed section, a cylinder, a plunger mounted in the cylinder and connected to the rod, a discharge pipe connected to the cylinder, a series of independent registers, a swinging bar for placing any one of the registers in operative position with respect to the toothed section of the pump rod, means for limiting the movement of the rod, said pump discharging liquid on the upward movement of the plunger, and retaining means for said swinging bar.

l2. The combination, in a measuring apparatus, of a pump rod, a rack-rod connected thereto, a series of registers, registertripping means, a swinging bar for actuating the register tripping means movable into alinement with any one of said registers and actuated by the rack-rod to operate the respective registers, a pinion for actuating said rackrod, a shaft for said pinion, plates mounted on the pinion shaft, auxiliary pinions carried by said plates, and an arm carried by one of said plates and operatively connected to the swinging bar.

13. rlhe combination, in a measuring apparatus, of a. series of registers, a pivotally mounted swinging bar, means for moving the said swinging bar to aline with any one of the registers, a pumping device, a plurality of adjustable measuring stops interposed between the pumping device and the swinging bar, means for raising the swinging bar so as to actuate a given register through the medium of the pump operating device, and a brake for stopping the pumping device operatively connected to said swinging bar.

14. rlhe combination, in a 'measuring apparatus, of a casing, a pump, a plunger in said pump, a rod carrying said plunger, a rack-rod vertically movable in the casing, means connecting said rack-rod to the plunger rod and permitting lost motion between said parts, a pinion for operating said rackrod, means for operating said pinion, means for stopping the movementJ olI said rack-rod, a swinging bar, and means for locking the rack-rod stopping means through said swinging bar.

15. The combination of a cylinder, a pump plunger, a pumping device including a rack-rod connected to the plunger, means for operating said rack-rod in both directions, locking means including pinions for preventing changes in the direction of movement of said rack-'rod until it reaches the ends of its respective movements, and a swinging bar actuated by said rack-rod and operatively connected to said locking means whereby the latter may be actuated to stop the movement of the rack-rod when said swinging bar is moved by the rack-rod.

16. The combination, in a measuring apparatus, of a rackrod, a pump-rod connected therewith, a series of registers, register actuating means, a swinging bar for actuat ing the registering means and movable to a position to predetermine the discharge movement of the pump-rod, and adjustable stops carried by the rack-rod to operate said swinging bar.

In testimony whereof, we have signed our names to this specication, in the presence of two subscribing witnesses.

CHAS. A. GEHMAN. JAMES W. HUGHES. Witnesses:

MURRAY C. BOYER, Jos. H. KLEIN.

Copies @i this patent may be obtained for ve cents each, by addressing the Commissioner of Patents. Washington, D. C. 

